Abstract: The novel flavonyl-1,4-dihydropyridines having the general formula (I): ##STR1## are therapeutically effective calcium antagonists and smooth muscle relaxant.

Abstract: Novel piperazine derivatives having the general formula: ##STR1## wherein R is hydrogen or lower alkyl, A is straight or branched chain lower alkyl, and R.sub.1 and R.sub.2 are each hydrogen, amino, alkylamino, dialkylamino, mono- or di(hydroxyalkyl)amino, morpholino, pyrrolidino, piperidino, N-alkylpiperazino, 1,3-dithiolan-2-ylidenamino, or N-alkylureido, with the proviso that at least one of R.sub.1 and R.sub.2 is other than hydrogen, or the isomeric mixtures, individual enantiomers or pharmaceutically acceptable acid addition salts thereof, are therapeutically useful antianaphylactic and antibronchospastic agents.

Abstract: Novel 3-methylflavone-8-carboxylates having the structural formula (I): ##STR1## wherein Z is N-methylpiperidinyl, tropinyl or quinuclidinyl, or a group having the structural formula (II): ##STR2## in which n is 0 or 1, R is hydrogen or alkyl having from 1 to 4 carbon atoms, or phenyl, R.sub.1 is hydrogen or alkyl having from 1 to 4 carbon atoms, R.sub.2 is hydrogen or hydroxy, and further wherein R, R.sub.1 and R.sub.2 may together form, with the carbon atoms from which they depend, a cycloalkyl ring having from 4 to 6 carbon atoms, and R.sub.3 is hydrogen or alkyl having from 1 to 4 carbon atoms, with the proviso that R, R.sub.1, R.sub.2 and R.sub.3 cannot at the same time all be hydrogen, and the pharmaceutically acceptable salts thereof, are effective smooth muscle relaxants, calcium blockers, anaesthetics and anti-inflammatories.

Abstract: The .omega.-[4-(2-pyridyl)-piperazino]-alkanoylanilide compounds having the structural formula (I): ##STR1## wherein n is 1, 2 or 3, each of R, R.sub.1, R.sub.2 R.sub.3, and R.sub.4 is independently hydrogen, halogen, alkyl, alkoxy, OH, NH.sub.2, CF.sub.3, CN, alkylthio, 1-hydroxyalkyl, alkanoyl, NH.sub.2 CO, NH.sub.2 SO.sub.2, alkoxycarbonyl, alkylsulfonyl, benzyloxy, alkanoylamino, NH.sub.2 CONH, 3-phenylureido, 3-alkylureido or alkoxyoxalylamino, R.sub.5 is hydrogen or alkyl, and R.sub.6 is hydrogen or alkoxy, and the pharmaceutically acceptable salts thereof, are effective antianaphylactics, antibronchospastics, antihistaminics, sedatives, analgesics, antiserotonics and blood-pressure-lowering agents.

Abstract: Novel cystine derivatives having the structural formula (I): ##STR1## wherein R is benzyloxycarbonyl or tosyl, and the pharmaceutically acceptable acid addition salts thereof, are effective expectorants and antitussives, and are also effective for the liquescence of respiratory tract fluids.